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The São Tomé, Príncipe, and Annobón moist lowland forests is a tropical moist broadleaf forest ecoregion that covers the islands of São Tomé and Príncipe, which form the island nation of São Tomé and Príncipe, as well as the island of Annobón, which is part of Equatorial Guinea. ==Setting== The three islands are volcanic, part of the Cameroon Line of volcanoes that extends from Annobón in the southwest, through the islands of São Tomé, Príncipe, and Bioko, and onto the mainland as Mount Cameroon and the volcanoes of the Cameroon Highlands. Príncipe is the northernmost island, and lies closest to the African mainland, with an area of 128 km2. São Tomé is the largest of the islands, approximately 836 km2, and lies southwest of Príncipe. Annobón is the southernmost island and lies furthest from the African coast, with an area of 17 km2. The islands are mountainous, with the highest peaks reaching to 2,024 meters on São Tomé (Pico de São Tomé), 948 meters on Príncipe (Pico do Príncipe), and 598 meters on Annobón (Pico Quioveo). Príncipe is the oldest of the islands, with the oldest rocks dating back 31 million years. São Tomé is 14 million years old, and Annobón 4.8 million years old.〔Lee, D-C., A.N. Halliday, J.G. Fitton, G. Poli. 1994. "Isotopic variations with distance and time in the volcanic islands of the Cameroon line: evidence for a mantle plume origin." ''Earth and Planetary Science Letters'' 123:119-138.〕 None of the islands have been connected to mainland Africa. The Tinhosas islands are two unvegetated rocky islets lying 22 km south of Príncipe. Tinhosa Grande has an area of 22 hectares, and reaches 56 meters elevation, and Tinhosa Pequena is 3 hectares in area and 65 meters elevation.〔Christy, Patrice. "Important Bird Areas in Africa and associated islands – São Tomé and Príncipe" BirdLife International.〕 See also: Wildlife of São Tomé and Príncipe. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「São Tomé, Príncipe, and Annobón moist lowland forests」の詳細全文を読む スポンサード リンク
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